Lois d'échelle dans la fracturation de roches dures cristallines et dans le réseau hydrographique associé

Abstract

Fractal geometry concepts are applied to analyse hard rock fracturing and the associated river network. The study area is located in the Ivory Coast (region of Man). Analyses point out that fracture network is plane filling, with D≈2 at all scales. The river network displays a rupture scale. This difference is interpreted in terms of geological constraints undergone by the river network according to the scale.